CN109922526A - Unlicensed band manages control instructions device - Google Patents

Unlicensed band manages control instructions device Download PDF

Info

Publication number
CN109922526A
CN109922526A CN201811521595.XA CN201811521595A CN109922526A CN 109922526 A CN109922526 A CN 109922526A CN 201811521595 A CN201811521595 A CN 201811521595A CN 109922526 A CN109922526 A CN 109922526A
Authority
CN
China
Prior art keywords
bandwidth
dci
carrier wave
enb
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811521595.XA
Other languages
Chinese (zh)
Other versions
CN109922526B (en
Inventor
浦天延
F·贝尔霍尔
曾威
张维
王晓文
李旸
王平
孙海童
王贝贝
金柳哲
J·O·赛贝尼
张大维
S·M·阿马尔福
季竺
S·阿罗拉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Apple Computer Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Apple Computer Inc filed Critical Apple Computer Inc
Publication of CN109922526A publication Critical patent/CN109922526A/en
Application granted granted Critical
Publication of CN109922526B publication Critical patent/CN109922526B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA

Abstract

This disclosure relates to which unlicensed band manages control instructions device.A kind of evolution node B (eNB) is used as main serving cell (PCell), which provides principal component carrier wave (PCC) to user equipment (UE) in carrier wave polymerization (CA) scheme in licensed spectrum.Auxiliary component carrier (SCC) is provided in unlicensed spectrum.ENB monitors the parameter of the bandwidth in unlicensed spectrum, when selected one change in availability at least one of parameter instruction bandwidth, eNB generates the control instructions device for the change in availability for defining bandwidth and broadcasts the control instructions device to UE, and wherein control instructions device influences the modification in the transceiver of UE associated with bandwidth.

Description

Unlicensed band manages control instructions device
Priority/be incorporated by reference
Entitled " the Unlicensed Band Management that patent application claims are submitted on December 13rd, 2017 The U.S. Provisional Application 62/598,221 of Control Indicators " (unlicensed band manage control instructions device) it is preferential Power, which, which is incorporated by reference, is incorporated herein.
Background technique
User equipment (UE) can be configured to have a variety of different abilities.For example, UE can establish connection with network. In one example, UE may be connected to long term evolution (LTE) network.When being connected to LTE network, UE is available and LTE network Associated ability.For example, UE can polymerize (CA) function using carrier wave, wherein using principal component carrier wave (PCC) and at least one Auxiliary component carrier (SCC) transmits data by various LTE frequency bands.The network components that UE is connected to can be to provide the evolution of PCC Node B (eNB).How the eNB of connection is also controllable is used together carrier wave polymerization with SCC.For example, eNB can be requested and SCC phase The measurement of associated LTE frequency band, and receive measurement and use available band in carrier wave polymerizable functional to determine how.Therefore, UE can have the multiple LTE frequency bands or carrier wave that can be used for transmitting data.
In a type of CA function, SCC can be provided by the bandwidth in unlicensed spectrum.In LTE standard, license Auxiliary access (LAA) can be the modification to CA function, allow unlicensed bandwidth being used for SCC.License band is used with to SCC Width is compared, and interference or other performance degradation sources is brought from other wireless technologys using unlicensed bandwidth, because not including these The frequency spectrum of permit bandwidth is shared with these other wireless technologys (for example, WiFi).If solved without mechanism by providing The main serving cell of PCC uses the problem of unlicensed bandwidth, and LAA may need extra time and/or power from UE.Example Such as, main serving cell may be selected to use unlicensed bandwidth by UE.However, UE may be returned by various measurements and/or procedure failure It writes in reply and ceases, indicate that selected unlicensed bandwidth is infeasible for SCC.Therefore, UE is necessary for these measurement/mistakes Journey uses excess power, and needs the more time correctly to configure using unlicensed bandwidth.
Summary of the invention
In an exemplary embodiment, a kind of side is executed by the evolution node B (eNB) as main serving cell (PCell) Method, the main serving cell provide principal component carrier wave to user equipment (UE) in carrier wave polymerization (CA) scheme in licensed spectrum (PCC), wherein providing auxiliary component carrier (SCC) in unlicensed spectrum.This method comprises: the bandwidth in monitoring unlicensed spectrum Parameter generates the availability change for defining bandwidth in selection one change in availability of at least one instruction bandwidth of parameter The control instructions device of change simultaneously broadcasts the control instructions device to UE, and wherein control instructions device influences the transmitting-receiving of UE associated with bandwidth Modification in device.
In another exemplary embodiment, a kind of network components with transceiver and processor are described.Transmitting-receiving Device is configured to connect to user equipment (UE), and transceiver is configured with carrier wave polymerization (CA) function and is used as to UE and provides The main serving cell (PCell) of principal component carrier wave (PCC), wherein providing auxiliary component carrier (SCC) in unlicensed spectrum.Processing Device monitors the bandwidth parameter in unlicensed spectrum, in selection one change in availability of at least one of parameter instruction bandwidth When, processor generates the control instructions device for defining bandwidth variation, and wherein processor indicates transceiver to UE Broadcasting Control Indicator, wherein control instructions device influences the modification in the transceiver of UE associated with bandwidth.
In another exemplary embodiment, carrier wave polymerization (CA) function and license auxiliary access are configured with (LAA) user equipment (UE) of function executes a kind of method, wherein serviced in licensed spectrum for principal component carrier wave (PCC), It is serviced in unlicensed spectrum for auxiliary component carrier (SCC), UE is provided to control information by providing the main serving cell of PCC (PCell) LAA function is used.This method comprises: receiving the control instructions device broadcasted from PCell, which is defined not The variation of bandwidth in licensed spectrum；Determine the modification of the transceiver of UE associated with bandwidth；And implement modification.
Detailed description of the invention
Fig. 1 is shown according to various exemplary implementation schemes as described herein, unlicensed band of the management for carrier wave polymerization Wide example system.
Fig. 2 shows according to each exemplary implementation scheme as described herein, it is configured as managing Fig. 1's of unlicensed bandwidth Example main serving cell in system.
Fig. 3 is shown according to various exemplary implementation schemes as described herein, and managing user equipment makes unlicensed bandwidth Exemplary method.
Fig. 4 is shown according to various exemplary implementation schemes as described herein, passes through the radio control on user equipment To manage the first exemplary method that main serving cell uses unlicensed bandwidth.
Fig. 5 is shown according to various exemplary implementation schemes as described herein, passes through the radio control on user equipment To manage the second exemplary method that main serving cell uses unlicensed bandwidth.
Fig. 6 is shown according to various exemplary implementation schemes as described herein, and it is small that main service is managed by channel control The exemplary method that area uses unlicensed bandwidth.
Specific embodiment
With reference to being described below and relevant drawings are further appreciated that exemplary implementation scheme, wherein similar element has phase Same drawing reference numeral.Exemplary implementation scheme is related to permitting that it is unlicensed used in (LAA) function that auxiliary accesses for managing The equipment, system and method for frequency spectrum, this is a kind of ad hoc fashion using carrier wave polymerization (CA) function.For example, one or more User equipment (UE) may be coupled to long term evolution (LTE) network, and wherein UE has CA ability, and LTE network is configured with CA Function, wherein CA function may include provide principal component carrier wave (PCC) main serving cell (PCell) and at least one mention respectively For the auxiliary serving cell (SCell) of auxiliary component carrier (SCC).Exemplary implementation scheme provides a kind of mechanism, and wherein UE can be One or more SCC utilize unlicensed spectrum, and PCell is configured as the use of management unlicensed spectrum.
In conjunction with the carrier wave polymerization executed on an LTE network, and uses via LAA function and do not permitted relative to LTE network Can frequency spectrum exemplary implementation scheme described.However, being merely exemplary using LTE network and LAA function.Exemplary embodiment party Case can be modified and/or for supporting carrier wave to polymerize or use the basic identity function of multiple component carriers and utilize specified Or any network of any function of licensed spectrum outside bandwidth.For example, it is contemplated that next generation cellular network (for example, 5G network) will Support the function of being similar to CA and LAA, and exemplary implementation scheme can be used together with such network.
It is described in detail as discussed further below, exemplary implementation scheme, which can use, is generated and provided to UE by PCell Down link control information (DCI).It will be apparent to one skilled in the art that DCI can be spy associated with LTE network Sign.However, as described above, feature associated with LTE network (such as DCI) is merely exemplary.Exemplary implementation scheme can Using any control mechanism with feature described herein to provide the feature of DCI when managing unlicensed spectrum.
Exemplary implementation scheme is related to UE can configuration associated with the network components of PCell are used as.In LTE network In, which can be evolution node B (eNB).How PCell is controllable with UE exchanges data, such as how in CA function In energy use PCC and any SCC, be included in implement LAA when, how for SCC use unlicensed spectrum.When UE has CA ability When, CA function enables PCell and other SCell aggregate bandwidth to exchange data with UE, to improve the speed of data exchange Rate.Therefore, using CA, PCell can provide the first part of total bandwidth for data to be exchanged, and SCell can provide total bandwidth Second part.When using other SCell, PCell can provide the first part of total bandwidth, and the first SCell can provide always The second part of bandwidth, the 2nd SCell can provide Part III of total bandwidth, etc..
Using LAA function, at least one SCell can provide the component bandwidth from unlicensed spectrum.Such as the mark of LTE network Defined in standard, PCell is worked in licensed spectrum.Therefore, in licensed spectrum, PCell can be using specific bandwidth (referred to herein as For " permit bandwidth " or " grant channel ").Using LAA function, PCell can provide PCC as license " anchor " to CA function PCC.LAA function allows SCell to work in unlicensed spectrum comprising falls in any bandwidth outside licensed spectrum.Therefore, In unlicensed spectrum, SCell can utilize specific bandwidth (herein referred as " unlicensed bandwidth " or " unlicensed channel ", herein It is middle to represent one or both using either term).
For exemplary purposes, exemplary implementation scheme is described using unlicensed spectrum associated with WiFi network. Specifically, the 5GHz frequency spectrum of WiFi network can be used by SCell.However, the frequency spectrum of WiFi network and the 5GHz of WiFi network Frequency spectrum is exemplary only.Exemplary implementation scheme can use any unlicensed spectrum and any fall in outside licensed spectrum Unlicensed bandwidth.
Although LAA function can provide SCell and use of the increased bandwidth for data exchange, using unlicensed spectrum Any other wireless technology of bandwidth shares physical medium in unlicensed spectrum.In view of this friendship for using public physical medium Folded, LAA function may include first listening to say (LBT) mechanism again.It will be apparent to one skilled in the art that LBT mechanism is that a kind of medium is competing Agreement is striven, so that LAA function can be used when with using the other equipment of unlicensed spectrum to coexist.LBT mechanism may relate to Radio environment is sensed before initiating the transmission, and the network or bandwidth of data exchange can be executed with determination.For example, passing through monitoring Selected channel, LBT mechanism provide the information for the data exchange to be executed when channel is not used by or is overloaded.
LBT mechanism is used in view of LAA function, LAA function shows dynamic ON/OFF behavior.In addition, unlicensed frequency appropriate Band selection/reselection is used for performance and coexists.For example, channel reselection operation can normal small cell operate during (for example, After the initialization of small cell) it is performed.Channel reselection operation be also based on periodic channel measurement and/or event (for example, Unlicensed bandwidth is added in WiFi access point (AP)).However, PCell is configured with reactive process to manage unlicensed frequency The use of spectrum.Therefore, additional power and time may be forced to use using the UE of unlicensed bandwidth to come finally using feasible Unlicensed bandwidth.
Exemplary implementation scheme is configured to supply active mechanisms, and wherein PCell manages unlicensed spectrum and SCC, including Those of the overall efficiency using LAA function is improved using unlicensed bandwidth to UE.For example, PCell can be for LAA ability The one or more unlicensed bandwidth of UE configuration, to define how to use the reception of UE in two kinds of situations activating and deactivate How device and UE execute the channel selection/gravity treatment of channel or part thereof via portions of bandwidth (BWP).Also using exemplary Embodiment makes SCell be configured as managing the unlicensed spectrum of UE.It therefore, can quilt according to the operation of exemplary implementation scheme It is expressed as the eNB process for implementation associated with LTE.However, for exemplary purposes, being described herein in conjunction with PCell Exemplary implementation scheme.It is described in detail as discussed further below, exemplary implementation scheme is divided in licensed spectrum by PCell With dedicated control resource set (CORESET), to manage the use of unlicensed spectrum.Therefore, once UE is configured for LAA function And LAA SCell, UE is activated just to monitor the CORESET for the control of LAA downlink.Exemplary implementation scheme can also be used to Define the CORESET in unlicensed band.Therefore, CORESET can be used in any available physical medium.However, for Illustrative purpose is incorporated in licensed band and defines CORESET to describe exemplary implementation scheme.Dedicated CORESET can be wrapped Include multiple and different special carrier particular downlink (DL) control information (DCI).As carrier wave, specific (rather than UE is specific ), the DCI in dedicated CORESET can be broadcast to each UE for being configured to have LAA function.DCI is additionally designed to come from The state of PCell updates, so that UE can utilize information realization power and the synchronous purpose in DCI.The dedicated specific DCI's of carrier wave Example may include that carrier wave closes DCI, carrier wave opens DCI, channel reselection DCI and carrier wave BWP DCI.Carrier wave is closed DCI and be can define When receiver or part thereof is deactivated or is placed it in sleep state.Carrier wave opens DCI and can define when to activate or call out Awake receiver or part thereof.Channel reselection DCI can define when present channel is fallen under operational threshold, how gravity treatment channel, Think the synchronous UE of channel hopping.Carrier wave BWP DCI can further define how the letter that omit from consideration by BWP gravity treatment Road.Each of these exemplary DCI are described in more detail.
Fig. 1 is shown according to various exemplary implementation schemes as described herein, and management is used for showing for the unlicensed bandwidth of CA Example system 100.Within system 100, UE 105 can be able to use CA function, and can also use LAA function.System 100 is wrapped Include UE 105 and multiple eNB 130, eNB 135, eNB 140.As described above, UE 105 can be with one of eNB 130-140 (such as ENB 130) it is associated, the network (such as LTE network) for corresponding to eNB 130 is added.UE 105 and eNB 130-140 may be used also To include CA function and LAA function, they can be enabled and be controlled by eNB 130.Since UE 105 is associated with eNB 130, Therefore eNB 130 can provide CA and the LAA configuration of the component carrier for being used by UE 105, and wherein eNB 130 can be PCell, and eNB 135, eNB 140 can be used as SCell, and wherein one or more of eNB 135, eNB 140 are to correspond to SCC uses unlicensed bandwidth.Thus it can be assumed that eNB 135, eNB 140 correspond to SCell in opereating specification, to provide SCC (for example, eNB 135, eNB 140).It may be noted that eNB 130-140 is only exemplary as eNB.eNB 130- 140 can also be other kinds of network insertion node (for example, gNB, small cell etc.).However, for exemplary purposes, knot It closes eNB and describes access node.
UE 105 can be configured as that any electronic equipment of network is added via eNB 130.For example, UE 105 can be with Portable device, such as cellular phone, smart phone, tablet computer, mobile phone type plate, laptop computer, wearable device, Internet of Things (IoT) equipment etc..In another embodiment, UE 105 can be fixed equipment, such as desktop computer terminal.UE 105 can also work on various different frequencies or channel (that is, cline frequency range).Therefore, UE 105 may include enabling not With radio access technologies or use the energy of frequency spectrum associated with these radio access technologies (for example, bandwidth, channel etc.) The component of power.As shown in Figure 1, UE 105 may include processor 110, memory arrangement 115 and transceiver 120.However, UE 105 It may also include other component, such as show equipment, input/output (I/O) equipment and other component, such as portable electric Source, audio I/O equipment etc..
Processor 110 can be configured to execute multiple applications of UE 105.For example, logical when being connected to via transceiver 120 When communication network, using may include Web browser.It therefore, can be with network exchange data.LAA function can be used to exchange data, to mention The high rate for exchanging data on the uplink.LAA function can also be used for improving the data exchange rate in uplink.? In another embodiment, using may include be configured as monitoring CORESET Decode engine 125.As discussed further below in detail Description, Decode engine 125 can receive DCI from PCell and be determined as the mode of LAA function management unlicensed spectrum.Another In a embodiment, using may include controlling engine 130, which is configured as based on the output from Decode engine 125 To realize the definition mode using LAA function.The operation of UE 105 when management unlicensed spectrum is described in more detail.
Above-mentioned engine is merely exemplary as the application (for example, program) executed by processor 110.Engine can also be by It is expressed as the independent bonded block of one or more multi-functional programs, UE 105, or the mould of UE 105 can be coupled to Block component, for example, with and without the integrated circuit of firmware.In addition, in some UE, by what is described for processor 110 Function is split between two processors (baseband processor and application processor).It can be according in these or the other configurations of UE Any configuration implement exemplary implementation scheme.
Memory arrangement 115 can be configured as storing the Hardware Subdivision of data relevant to the operation executed by UE 105 Part.In particular, memory arrangement 115 can store and the different associated surveys of component carrier used in CA function of UE 105 Amount.
Using CA function, eNB 130 can be used as PCell, and eNB 135, eNB 140 can be used as at least one in SCell It is a.Therefore, when being configured and activated, SCell can be the small cell for example worked in unlicensed spectrum.PCell can The first component carrier (for example, 10MHz) for representing the PCC worked in (for example, LTE network) first licensed band is provided, And SCell can provide representative work in unlicensed band (for example, 5GHz frequency band) SCC second component carrier wave (for example, 20MHz).It will be appreciated by those skilled in the art that other bandwidth (such as 1.4,3,5 or 15MHz) can be used, and usually may be used It polymerize most five component carriers.In this embodiment, using the PCC with the 10MHz bandwidth and SCC with 20MHz bandwidth, Carrier wave polymerization can aggregate bandwidth, to realize the total bandwidth of 30MHz.
Network shown in system 100 is exemplary only.For example, can be in the eNB 130- in the communication range of UE 105 140 quantity can be more or less than three.It will also be understood by those skilled in the art that can have any number of other types net Network can also be in the communication range of UE 105, and UE 105 can be additionally configured to establish a connection.That is, UE 105 Different radio access technologies (RAT) can be used to be attached.For example, system 100 may also include old-fashioned Radio Access Network, Wireless LAN, WiFi network, bluetooth connection etc..If being configured to this ability, CA function even can be used for other Between the network of type.However, for exemplary purposes, being provided herein with reference to LTE network and component carrier by eNB 130-140 To describe CA function.In addition, as described above, eNB 130-140 can be configured to have the function of LAA and be configured as small-sized small Area.Therefore, eNB 130-140 may include any necessary hardware, software and/or firmware to utilize unlicensed spectrum.Therefore, ENB 130-140 as SCell operation, which can be, is modified to work in eNB in unlicensed spectrum (for example, small-sized small Area, Femto cell, picocell, Microcell etc.).Therefore, eNB 130-140 can be can in unlicensed spectrum with UE Any kind of base station of 110 communications.
It will be appreciated by persons skilled in the art that LAA function provides only the potentiality of efficiency of transmission raising.For example, in item When part allows, UE 105 can only realize maximum increase efficiency of transmission.For example, using selected by selected unlicensed bandwidth SCell may be interfered and expected handling capacity cannot be provided.
Exemplary implementation scheme is configured as the active mechanisms used by PCell enhancing LAA function.PCell is executable Multiple and different operations are to manage unlicensed spectrum.When executing these operations, PCell produces corresponding DCI and passes DCI Defeated/broadcast is to UE 105 (and in system 100 any other have the UE of LAA ability).Using these operations, PCell can be with Increase LAA function and the probability of bigger efficiency of transmission is provided.
Fig. 2 shows according to each exemplary implementation scheme as described herein, it is configured as managing Fig. 1's of unlicensed bandwidth Example PCell in system 100.In this embodiment, PCell can be eNB 130.It therefore, for exemplary purposes, can be with It is assumed that eNB 130 works in licensed spectrum to provide PCC and communicate with UE 105.However, use eNB 130 as PCell only It is merely exemplary, either one or two of ENB 130-140 can be PCell, and other eNB 130-140 can be SCell.
ENB 130 can be configured to execute multiple engines, and the multiple engine executes function with the unlicensed frequency of active management Spectrum uses in LAA function for UE 105.ENB 130 can represent any access node of LTE network, and UE 105 can pass through it Establish connection and management network operation.Equally, if these eNB 135, eNB 140 execute the function of PCell, eNB 130 can To be the representative of other eNB 135, eNB 140.ENB 130 may include processor 205, memory arrangement 210, input/output (I/O) equipment 220, transceiver 225 and other component 230.Other component 230 may include such as audio input device, audio Output equipment, battery, data acquisition equipment, port for eNB 130 to be electrically connected to other electronic equipments etc..
Processor 205 can be configured to execute multiple engines of eNB 130.For example, engine may include ability engine 235, SCell selects engine 240 and DCI engine 245.It is described in detail as discussed further below, ability engine 235 can be configured to locate ENB 130 is managed as CA the and LAA function of its UE as PCell.SCell selection engine 240 can be configured to and ability engine 235 operate together with how determination selects and use SCell in CA and LAA function.DCI engine 245 can be configured to generate And DCI to UE 105 is broadcasted/transmits, how unlicensed spectrum is used with management.DCI engine 245 may also include multiple sub- engines. In particular, DCI engine 245 may include that carrier wave closes sub- engine 250, carrier wave opens sub- engine 255, channel reselection sub- engine 260 and carrier wave BWP sub- engine 265.Carrier wave closes sub- engine 250 and can be configured to generate carrier wave closing DCI, indicates how as not Selected channel/bandwidth in licensed spectrum deactivates the transceiver 120 or part thereof of UE 105.Carrier wave opens sub- engine 255 can be configured to generate carrier wave opening DCI, indicate how as selected channel/bandwidth activation UE in unlicensed spectrum 105 transceiver 120 or part thereof.Channel reselection sub- engine 260 can be configured to generate channel reselection DCI, to UE 105 into Row synchronization is so that definition channel/bandwidth of the channel hopping into unlicensed spectrum.Carrier wave BWP sub- engine 265 can be configured to give birth to At carrier wave BWP DCI, for channel reselection procedure disabling selection subchannel.
Above-mentioned engine is merely exemplary as the application (for example, program) executed by processor 205.Can also will with draw The independent bonded block that associated function is expressed as eNB 130 is held up, or can be the modular member for being couple to eNB 130, For example, the integrated circuit with or without firmware.For example, integrated circuit may include the input circuit and use for receiving signal In the processing circuit of processing signal and other information.In addition, in some eNB, by the function of being described for processor 205 more It is split between a processor (for example, baseband processor, application processor etc.).It can be according in these or the other configurations of eNB Any configuration implement exemplary implementation scheme.
Memory 210 can be the hardware component for being configured as storing data relevant to the operation executed by UE 110.I/O Equipment 220, which can be, to be allowed users to and the hardware component interacted of eNB 130 or port.Transceiver 225 can be configured as The hardware component of data exchange is carried out with any other UE in UE 105 and system 100, especially in eNB 130 as UE's When PCell or SCell.Transceiver 225 can work on various different frequencies or channel (for example, one group of cline frequency).With When making PCell, transceiver 225 be operable with grant channel/bandwidth with corresponding UE communication.When being used as SCell, transceiver 225 are operable with grant channel/bandwidth, with via conventional CA function or unlicensed bandwidth and corresponding UE communication, thus via LAA Function and corresponding UE communication.Therefore, transceiver 225 may include one or more components (for example, radio unit) with can be with Various networks and UE carry out data exchange.
As described above, eNB 130 can be used as the PCell of UE 105.Therefore, (for example, when license is used only in CA function When channel) or when unlicensed bandwidth (for example, when be used only) uses in LAA function any management of channel/bandwidth can be by ENB 130 is executed.According to exemplary implementation scheme, PCell can manage LAA function by providing DCI to UE 105, the DCI Define how UE 105 executes operation relevant to LAA function.As it will be explained in more detail hereinafter, DCI can be with a variety of different sides Formula uses, and includes how the operation using transceiver 120 and LAA.
At the beginning, eNB 130 determines whether CA function or LAA function can be used together with UE 105.As UE 105 and eNB 130 is associated and when LTE network is added, and UE 105 can provide or be already provided with the information of pass ability.The technology of this field Personnel will be understood that UE 105 may issue the finger that whether UE 105 has CA ability and whether UE 105 further has LAA ability Show.Therefore, ability engine 235 can first processing instruction with determine can be used for UE 105 data exchange path type.In eNB 130 when having determined that UE 105 (or any amount of UE in system 100) has LAA ability, eNB 130 can using other engine come How management uses the unlicensed spectrum of LAA function.
SCell selection engine 240 can be operated together with ability engine 235 with how determination selects in CA and LAA function With use SCell.Because eNB 130 is configured to determine that how UE 105 is operated using any CA, SCell selects engine 240 It can determine the available SCell (for example, eNB 135, eNB 140) in 105 range of UE.For example, UE 105 may be provided About predetermined close within distance or can be with the information of the eNB communicated of UE 105.SCell selection engine 240 can also be configured To determine whether the available SCell of UE 105 has LAA ability and/or activation LAA function.Therefore, SCell selects engine 240 also Can be configured to request can activate LAA function with SCell.
DCI engine 245 produces and broadcasts/transmit DCI to UE 105, how to use unlicensed spectrum with management.Work as eNB When how 130 determinations are to use the general modification of LAA function, DCI can be broadcast in system 100 UE for having LAA ability.When When eNB 130 determines the specific modification for being directed to particular UE, DCI can be transmitted particular UE.Equally, DCI engine 245 may also include Carrier wave closes sub- engine 250, carrier wave opens sub- engine 255, channel reselection sub- engine 260 and carrier wave BWP sub- engine 265.Therefore, DCI engine 245 can generate multiple and different DCI via engine 250-265.It should be noted that according to exemplary implementation scheme It can be the revision of the DCI conventionally used for LTE network by the DCI that eNB 130 is generated.
Carrier wave closes sub- engine 250 and produces carrier wave closing DCI, indicates how be selected in unlicensed spectrum Channel/bandwidth deactivates the transceiver 120 or part thereof of UE 105.When determining how generation carrier wave closing DCI, carrier wave is closed Sub- engine 250 may include monitoring function.Special-purpose member can be used in monitoring function and/or existing component executes.Implement first In example, the transceiver 225 of eNB 130 can be configured to execute monitoring function.For example, monitoring function can be the mould of eNB 130 Block or bonded block.In a second embodiment, eNB 130 may include the flow monitor configured with monitoring function.Flow monitoring Device can be arranged to the modem of always-on, provide medium holding time and band to eNB 130 via carrier sense It is wide.As described above, LAA function can be used for 5GHz WiFi frequency spectrum.Therefore, flow monitor can be WiFi flow monitor, all Such as the adjoint WiFi equipment of eNB 130.
Regardless of being embodied, when monitoring function all can get the occupancy with unlicensed spectrum (for example, 5GHz frequency spectrum) Between and the corresponding associated occupied information of bandwidth.Based on medium holding time and corresponding unlicensed bandwidth, carrier wave closes sub- engine 250 can determine that unlicensed band is not useable for transmitting the time slot of data and/or the quantity of subframe to UE 105 via LAA.For example, Unlicensed bandwidth known to possible will use specific duration in future time (for example, by WiFi network and WiFi equipment).Cause This, this can correspond to specifying the LAA transceiver 120 at unlicensed bandwidth by UE 105 during known time/duration (or appropriate part of LAA transceiver 120) is placed in sleep cycle.
Determine that the not available time slot/subframe of unlicensed bandwidth is contemplated that various factors.For example, the determination is admissible LBT mechanism and the timing for executing LBT mechanism.By ad hoc fashion, LBT machine can be executed in Transmission Time Interval (TTI) boundary System.LBT mechanism can also use a TTI time before the transmission of effective cellular data.Accordingly, it is determined that time slot/subframe may be used also Consider LBT mechanism, may further indicate that the availability of unlicensed bandwidth.In another embodiment, time slot/subframe is determined also It is contemplated that energy measuring.With with flow monitor substantially similar manner, can be used energy measuring function (utilize correspondence portion Part) to provide other inputs in time slot/subframe determines.Energy measuring output can be used as the grid factor to determine whether to calculate It closes the period and/or broadcast carrier whether is wanted to close DCI.In ad hoc fashion, if energy measuring output is lower than predetermined Threshold value, can stop sleep cycle calculate and carrier wave close DCI (for example, medium is marked as the free time and can be used for transmitting Data).
Therefore, carrier wave closes sub- engine 250 and produces carrier wave closing DCI, and it includes pass identified above which, which closes DCI, In selected unlicensed bandwidth it is when unavailable and how long not available information.It may include for eNB that carrier wave, which closes DCI, 130 be its PCell system 100 in have LAA ability UE transceiver sleep cycle and unlicensed bandwidth information.Therefore, Carrier wave can be closed DCI and be broadcast to these UE (for example, UE 105) by eNB 130.Can by permit bandwidth or it is known will be by UE Another used can be used unlicensed bandwidth to execute the broadcast that carrier wave closes DCI.The reception of UE 105 is described in more detail The result of carrier wave closing DCI.
In the exemplary embodiment, it may include a variety of different types of contents that carrier wave, which closes DCI, and can produce as tool There are various features.For content, it may include carrier wave instruction or bandwidth field and Duration field that carrier wave, which closes DCI,.Bandwidth Field can indicate to carry out or the bandwidth of expected transmission frequency and occupancy.Entity depending on honeycomb side is (for example, auxiliary grade carries Wave (SC) tissue), bandwidth field can define in different ways.It in the first embodiment, may include the range of SC index Or list.If 802.11ac WiFi equipment is used 80MHz and is transmitted, and its main channel and SC index 1 (SC1) It is identical, and each SC is configured as 20MHz (such as in LTE), then the bandwidth field can be the model for indicating SC index from 1 to 4 It encloses.It in a second embodiment, may include SC index and its association BWP.If 802.11ac WiFi equipment is used 80MHz transmission, and its main channel is within SC1 (it is configured as 100MHz), bandwidth field may include SC1 and one or Multiple BWP, to indicate the position of 80MHz.It in the third embodiment, may include the combination of SC index list and BWP list.It holds Continuous time field can indicate specific time unit (for example, as unit of time slot or subframe).The content can also be by public nothing Line electric network temporary identifier (RNTI) scrambled cyclic redundancy check (CRC), allowing has the UE of LAA ability to close carrier wave Close DCI decoding.
For feature, in the first embodiment, carrier wave, which closes DCI, can be channel coding.For example, can use letter Road encodes (for example, the block code of polar code, convolutional code etc.) protection carrier wave and closes DCI.It can choose channel code, thus Bigger reliability weight is placed in false alarm ratio rather than in error detection ratio, because the current state of transceiver 120 is to want It wakes up.If there is false alarm, then the receiver of transceiver 120 may miss DL data because mistakenly entering sleep pattern. UE 105, which can also select to return back under predetermined condition (for example, low signal-to-noise ratio (SNR)), wakes up mode often to avoid false alarm.? In another embodiment, it may include configurable monitoring that carrier wave, which closes DCI,.It therefore, can be in configuration or re-configuration process Indicate or empty the definition of DCI content.It is configured in SCell or incidentally can close the configuration of DCI by carrier wave during reconfiguring.? In other embodiment, carrier wave, which is closed DCI and be can have, to be activated or deactivated monitoring.When SCell is activated or is deactivated, Executable carrier wave closes the activation or deactivation of DCI monitoring.
Carrier wave opens sub- engine 255 and produces carrier wave opening DCI, indicates how as the selected letter in unlicensed spectrum Road/bandwidth activation UE 105 transceiver 120 or part thereof.When determining how generation carrier wave opening DCI, carrier wave is opened son and is drawn LBT mechanism can be utilized by holding up 255.If there is transmission data available (for example, being directed to UE 105) at the buffer area DL, eNB 130 can LBT mechanism is executed with (for example, in time slot or sub-frame boundary).LBT mechanism can be executed (for example, such as in every sub-channels In WiFi like that, every sub-channels 20MHz), and multiple LBT mechanism can be run parallel to cover all available bandwidths.Cause This, eNB 130 can start simultaneously LBT mechanism at every sub-channels.
Once the selected section of bandwidth or all parts are sensed to be the free time, then the carrier wave in sub- engine 255 is ready for Earliest available time (for example, rear half of slot time) via available bandwidth (for example, permit bandwidth or another can be used it is unlicensed Bandwidth) broadcast carrier opening DCI.Carrier wave, which opens DCI, can indicate wake events, may include the transmitting continuous time (if If knowing), it may include the available bandwidth information etc. of unlicensed spectrum.Meanwhile it can be protected by can be used unlicensed bandwidth to send Signal is stayed, to prevent other eNB or WiFi equipment from occupying medium.Stick signal can long enough, with allow UE to carrier wave open DCI Decoding, so that UE can activate corresponding receiver in unlicensed bandwidth.Once UE opens DCI decoding to carrier wave or completes to be somebody's turn to do The expeced time of operation terminates, then carrier wave opens sub- engine 255 and can stop stick signal and indicate the unlicensed band by retaining Width initiates cellular signal transmission.UE 105 is described in more detail and receives the result that carrier wave opens DCI.
Described above is carrier waves to open DCI, and all UE with LAA ability are waken up at the unlicensed bandwidth of instruction. However, this feature for waking up all UE is only exemplary.According to another exemplary embodiment, carrier wave opens DCI can Group is configured as specifically, so that its buffer area DL only be made to include the UE quilt for having LAA ability of the transmission data of 130 side eNB It wakes up.
In the exemplary embodiment, it may include a variety of different types of contents that carrier wave, which opens DCI, and can produce as tool There are various features.For content, it can also additionally include transmission that it may include carrier wave instruction or bandwidth field that carrier wave, which opens DCI, Duration field.Bandwidth field can indicate the frequency and bandwidth retained during executing LBT mechanism.Reality depending on honeycomb side Body (for example, SC is organized), bandwidth field can define in different ways.It in the first embodiment, may include SC index Range or list.If 80MHz is sensed to be idle and assumes to distribute to each SC20MHz, frequency and bandwidth information can be used Signal notice is SCnThe SC arrivedn+3.It in a second embodiment, may include SC index and its association BWP.If 80MHz is felt Survey and be located within the frequency field of SC1 for the idle and bandwidth (and assume the assigned 100MHz of SC1 and be divided into 5 not Same BWP), frequency and bandwidth information can be notified to be SC by signal1、BWPn-BWPn+3.It in the third embodiment, may include SC The combination of index list and BWP list.Transmitting continuous time field can indicate certain chronomeres (for example, with time slot or subframe For unit) reach an agreement jointly or is sent from configuration process.Transmitting continuous time field can be set to 0 to indicate not The transmitting continuous time known.The content can also be by the scrambled CRC of public RNTI, so that having all UE or ground of LAA ability UE can open DCI decoding to carrier wave.
For feature, in the first embodiment, carrier wave, which opens DCI, can be channel coding.For example, can use letter Road encodes (for example, the block code of polar code, convolutional code etc.) protection carrier wave and opens DCI.It can choose channel code design, To place bigger reliability weight in error detection ratio rather than in false alarm ratio, because the current state of transceiver 120 is It sleeps.If there is error detection, then the receiver of transceiver 120 may miss DL number because being mistakenly maintained at sleep pattern According to.UE 105, which can also select to return back under predetermined condition (for example, low signal-to-noise ratio (SNR)), wakes up mode often to avoid erroneous detection It surveys.In another embodiment, carrier wave, which opens DCI, can have configurable monitoring.Therefore, in configuration or re-configuration process In, it is possible to specify or empty the definition of DCI content.In the SCell configuration using radio resource control (RRC) message or again During configuration can incidentally carrier wave open DCI configuration.In a further embodiment, carrier wave opening DCI, which can have, is activated Or deactivated monitoring.When SCell is activated or is deactivated (according to configuration), carrier wave can be executed automatically and opens swashing for DCI monitoring Living or deactivation.
Channel reselection sub- engine 260 produces channel reselection DCI, is synchronized to UE 105 so that channel hopping is not to being permitted It can definition channel/bandwidth in frequency spectrum.As described above, the selection of unlicensed bandwidth is to improve the significant operation of LAA function.Example Such as, when LAA function and WiFi AP are worked on same unlicensed 5GHz frequency band, channel selection appropriate and/or gravity treatment are used for It performance and coexists.As also described above, selection operation can be during normal small cell operates (for example, initial in small cell After change) it is performed and can be based on periodic channel measurement and/or particular event (for example, LAA channel is added in WiFi AP).
In the 3GPP version 13 for including LTE and LAA standard, the spy for channel reselection is not specified in LAA function Determine mechanism.If available without specific mechanism, channel reselection trigger mechanism (determining when using) is to leave eNB embodiment for do Decision.In addition, only can reconfigure or reactivate mechanism using existing SCell to carry out channel reselection procedure.However, this Field the skilled person will understand that disadvantage associated with such dependence.For example, be RRC process since SCell is reconfigured, because This delay (for example, about 24ms) becomes problem.In another embodiment, since SCell is reconfigured or is reactivated and is UE is specific, therefore has to repeat such process in systems for each UE (because such channel reselection is by eNB 130 rather than UE triggering).
In view of the foregoing, it is utilized according to the channel reselection mechanism of exemplary implementation scheme similar to used in LTE The trigger mechanism of cell measurement or cell re-selection mechanism.However, being channel or load according to the trigger mechanism of exemplary implementation scheme Wave is specific (rather than UE is specific), and can mainly measure at eNB 130 (rather than at UE).It therefore, can be with base Fast Channel gravity treatment mechanism is provided in the message (for example, channel reselection DCI) of reference carrier wave.Such method provides various excellent Point.For example, this method is at low cost, because it has used the broadcast of reference carrier wave rather than UE is specifically broadcasted.At another In embodiment, this method has low latency, because it is reference carrier wave, and can complete via DCI in PHY layer grade.? In another embodiment, in view of above-mentioned two advantage, this method is suitble to Fast Channel adjustment.
It can be related to channel reselection sub- engine 260 according to the triggering of the channel reselection of exemplary implementation scheme and monitor load state simultaneously Arbitrate channel reselection.Load state is monitored also similar to the cell measurement in LTE, but is completed at eNB 130.Load state Monitoring can be related to two different measurements: service channel load measure and adjacent channel load measure.Service channel load measure It can be the load on the SCC that SCell (for example, eNB 135 or eNB 140) is provided to the UE that eNB 130 is its PCell.It can Not consider the load introduced for UE (for example, UE 105) by service LAA SCell in system 100, with adjacent channel Loading has fair comparison.For example, service channel load measure can be related to other sources (such as WiFi equipment) how will load Introduce service channel.Service channel load measure can be used as the by-product of LBT mechanism and be exported (for example, if LBT mechanism is It is continuously performed when LAA prevents take up channel).Adjacent channel load measure can be the UE for being not used for that eNB 130 is its PCell Channel on load.Depending on associated cost (for example, out of service time, power consumption etc.), adjacent channel load Measurement can be triggered (for example, service channel load is higher than threshold value) by predetermined event.For adjacent channel load measure Measurement method option can be parallel measurement (for example, parallel DL transmission and channel monitoring) or serial measurement (for example, serial DL transmission and channel monitoring, such as measurement gap).It, can be to for service channel before being used as the input of channel reselection The measurement result of load measure and adjacent channel load measure is filtered (for example, such as L3 filter in LTE).
Channel reselection arbitration can have the target for the available channel capacity for increasing LAA function.Accordingly it is contemplated that a number of factors Or their combination.For example, the factor may include load state (for example, at service channel, at adjacent channel or two Person), dynamic frequency selection (DFS) or transmitting power control (TPC) require, transimission power spectral density (PSD), available bandwidth Deng.In order to avoid channel reselection of rattling, the channel reselection arbitration executed by channel reselection sub- engine 260 can use stagnant ring.Example Such as, a kind of service channel load state can be before considering gravity treatment, more predetermined by hundred than adjacent channel load state difference Divide ratio.Therefore, channel reselection arbitration mechanism can be related to the load of measurement service channel and determine whether the load in other sources is higher than threshold Value (since itself load is omitted).When the load in other sources is higher than threshold value, channel reselection arbitration mechanism can be related to measure Adjacent channel loads and determines whether to load less adjacent channel.When there are such adjacent channel, channel reselection is secondary Sanction can trigger channel reselection by broadcast channel gravity treatment DCI.
Still awake instruction is slept on the contrary, by channel weight with transceiver 120 that make UE 105 or part thereof is provided The channel reselection mechanism of DCI is selected to can be two-way process, including the information exchange between UE 105 and eNB 130, to dispatch number According to transmission.Therefore, eNB 130 can broadcast channel gravity treatment DCI first.Can by any available bandwidth (for example, license or not License) broadcast channel gravity treatment DCI.For example, can be by stopping LBT mechanism, until completing broadcast, to pass through permit bandwidth Broadcast channel gravity treatment DCI.In another embodiment, LBT mechanism can continue to operate in all possible unlicensed band of service On width, once one of these unlicensed bandwidth are made available by, so that it may broadcast channel gravity treatment DCI.Can PHY layer grade via with In quickly interactive carrier wave DCI broadcast channel gravity treatment DCI.However, it is also possible in MAC layer grade or rrc layer grade broadcast channel gravity treatment DCI.Channel reselection DCI can also include carrying out the new of gravity treatment to it about (for example, based on above-mentioned arbitrated procedure) determination The information (for example, channel number and bandwidth) of channel.
The result that UE 105 receives channel reselection DCI is described in more detail.However, receiving channel weight in UE 105 When selecting DCI, eNB 130 can receive response.For example, ACK (for example, ACK from UE 105) or implicit can be received explicitly Ground receives ACK (for example, being prompted by other responses from UE, such as from the pass of UE from the UE 105 for receiving channel reselection DCI In the CSI feedback report of the channel of gravity treatment).ACK can indicate that UE 105 is that new unlicensed bandwidth is ready.
ENB 130 can be by executing further operation before the new unlicensed bandwidth scheduling data for 105 gravity treatment of UE. For example, newly selecting the link of unlicensed bandwidth to adjust to execute, eNB 130 can utilize the specific CSI feedback of UE.eNB 130 The CSI-RS that non-precoding can be also broadcasted to all UE, the link-quality of these UE is acquired with fast and easy.However, if using Conservative scheduling, eNB 130 can also skip the operation of this CSI feedback.Once indicating and confirmed gravity treatment, eNB 130 Start LBT mechanism and data communication (for example, in DL) is executed by the unlicensed bandwidth of gravity treatment.
Carrier wave BWP sub- engine 265 produces carrier wave BWP DCI, for channel reselection procedure disabling selection subchannel.Ability Domain the skilled person will understand that, bandwidth may include the component being made of the continuous subcomponent of such as Physical Resource Block (PRB), such as BWP.For new radio (NR) LAA, NR the subchannel of several 20MHz can be bonded together as a channel or It is bonded into a SCell.For each channel or small cell, can by UE specific, UE group or channel certain party Formula configures several BWP.Carrier wave BWP sub- engine 265 (can be drawn in not better channel for gravity treatment by channel reselection 260 are held up to determine) and in one or more 20MHz subchannels excessively congestion or with generation carrier wave BWP DCI when excessively conflicting.Tool It says to body, carrier wave BWP DCI can be generated by carrier wave BWP sub- engine 265 to disable these subchannels.Carrier wave BWP DCI can be with Including the bitmask about the state (for example, activation or deactivation) for every sub-channels.Carrier wave BWP DCI can also pass through Public unlicensed Bandwidth Management CORESET broadcast.The result that UE 105 receives carrier wave BWP DCI is described in more detail. If effective BWP be zero or for particular UE it is too small, carrier wave BWP sub- engine 265 can utilize the specific BWP of normal UE It reconfigures these UE and correspondingly activates them.
Described above is multiple and different DCI, so that eNB 130 can be configured to generate and be broadcast to UE.ENB 130 can It is configurable to generate and utilizes one or more of above-mentioned DCI.For example, eNB 130 can be configured to close merely with carrier wave DCI closes DCI and channel reselection DCI using carrier wave, utilizes all four DCI etc..In addition, eNB 130 is also using DCI's Combination carries out broadcasting or can uniquely utilizing DCI.For example, carrier wave close DCI and carrier wave open DCI can provide it is opposite to UE Effect gives relatively current state (for example, current state is clear for the UE for using carrier wave to close DCI with what be can be used It wakes up, and current state is sleep for using the UE of carrier wave opening DCI).Therefore, it can be closed mutually exclusively using carrier wave It closes DCI and carrier wave opens DCI.But, in correctly configuration eNB and/or UE, it can use carrier wave and close DCI and carrier wave opening The combination of DCI.In another embodiment, channel reselection DCI and carrier wave BWP DCI can be used independently of each other.Due to carrier wave BWP DCI can have channel reselection to be used for can not or it is infeasible when situation setting (for example, will use channel weight When selecting DCI), when not using channel reselection DCI, carrier wave BWP DCI can be used only.In another embodiment, channel closes It closes DCI and/or channel is opened DCI and can be used in combination with channel reselection DCI and/or carrier wave BWP DCI.For example, channel reselection DCI and carrier wave BWP DCI can be the further refinement that carrier wave closes DCI and how carrier wave opening DCI influences UE.
Described above is the operations that PCell (for example, eNB 130) is executed when managing unlicensed spectrum, although institute as above It states, can also be executed by SCell (for example, when DCI is by available unlicensed band broadcast).Any one is being provided to UE 105 Or when multiple DCI, the unlicensed spectrum for LAA function can be used by more efficient way, because PCell may be SCell has been selected through the available information based on unlicensed spectrum, has been defined how using LAA function, and define to be used Unlicensed bandwidth.Therefore, PCell reduces or eliminates the needs to UE 105 using active mode, to provide to using LAA function The feedback of energy (for example, SCell, bandwidth etc.) selected mode.However, in addition to UE 105 to PCell provide feedback routine Except mode, exemplary implementation scheme also can be used, how to use LAA function further to refine.
When UE 105 is via transmission or broadcast reception DCI, UE 105 is also based on the information in received DCI included Execute multiple operations.In the first embodiment, when UE 105 receives carrier wave and closes DCI, UE 105 at the beginning can be to carrier wave Close DCI decoding.As described above, carrier wave, which closes DCI, can define unlicensed bandwidth and corresponding sleep cycle.It therefore, can be with Receiver sleep scheme is executed by UE 105, will be received and dispatched in the sleep cycle shown or these unlicensed bandwidth not available times The receiver that device 120 corresponds to unlicensed bandwidth is partially disposed in sleep.Sleep state is only exemplary, in these expressions Period in any low-power mode can be used.At the end of the corresponding period, UE 105 can wake up receiver and be Subsequent DL data are prepared.
In a second embodiment, when UE 105 is received and opened DCI from the carrier wave that eNB 130 is broadcasted, UE 105 is at the beginning DCI decoding can be opened to carrier wave.As described above, carrier wave opening DCI can be defined to be reserved and be used and want for UE 105 Unlicensed bandwidth for DL transmission.Therefore, UE 105 can be performed receiver and wake up unlicensed band of the scheme to retain for these Wide activating receiver chain, to start to receive.Once it completes DL transmission or specifies the period for waking up specific receiver chain, These receivers can be placed in sleep by UE 105.Otherwise, UE 105 can be after detecting non-cellular signal or maximum pre- These receivers are placed in sleep (can be via static or semi-static after the first determining permission transmitting continuous time terminates RRC configuration sends signal from upper layer).
In the third embodiment, when UE 105 is received from the channel reselection DCI that eNB 130 is broadcasted, UE 105 is at the beginning Channel reselection DCI can be decoded.As described above, the synchronous UE 105 of channel reselection DCI can be used when to use new channel Channel hopping scheme.Therefore, channel reselection DCI can be defined can be used for the new unlicensed of subsequent DL transmission via LAA function Bandwidth.It is further processed decoding and executing to channel reselection DCI to determine UE 105 whether via channel reselection scheme When making preparation for this change, UE 105 can produce and transmit ACK or provides the implicit ACK about its preparation.It connects Get off, when exchanging DL transmission, this new unlicensed bandwidth is can be used in UE 105.
In the fourth embodiment, when UE 105 is received from the carrier wave BWP DCI that eNB 130 is broadcasted, UE 105 is at the beginning Carrier wave BWP DCI can be decoded.As described above, carrier wave BWP DCI can define through bitmask activation or deactivated BWP, Indicate the state of the specific BWP of channel.UE can be used the specific BWP of channel as the specific BWP's of UE for previously having configured With mask, configured with adjusting modified effective operation BWP.In this way, UE may know that use in LAA function and not permitted It can be used or the BWP that is saved from consideration when bandwidth.
UE 105 is also configured to utilize one or more DCI.For example, UE 105 can be configured to close merely with carrier wave It closes DCI or carrier wave opens DCI.In another embodiment, UE 105 can be configured to close DCI and channel reselection using carrier wave DCI.In a further embodiment, UE 105 can be configured to utilize all four DCI.By this method, UE 105 can be matched It is set to decoding and extracts the information that can include in DCI, to execute subsequent operation.In addition, UE 105 be also configured to from The broadcast reception of eNB 130 utilizes the combination of DCI to when being more than a type of DCI.For example, UE 105 may be received DCI and channel reselection DCI is closed to carrier wave.Therefore, the receiver chain for the unlicensed bandwidth for being used to define can be placed in by UE 105 It sleeps and further determines that the unlicensed bandwidth in LAA function to be selected for.
Fig. 3 is shown according to various exemplary implementation schemes as described herein, and managing user equipment makes unlicensed bandwidth Exemplary method 300.Method 300 can be related to UE 105 how to receive from PCell (for example, eNB 130) broadcast one or Multiple DCI, and corresponding operation group is executed based on the information extracted from DCI.It therefore, will be from the angle description side of UE 105 Method 300.
In 305, UE 105 may be associated with eNB 130.Some time during or after association process, Ability information can be transferred to eNB 130 by UE 105.Ability information may include CA ability and/or LAA ability.When eNB 130 is true When recognizing CA or LAA ability, eNB 130 become the PCell of UE 105 and for PCC provide for provided when available SCC its He is SCell (for example, eNB 135, eNB 140).
In 310, UE 105 monitors the CORESET broadcasted by eNB 130.As described above, CORESET can be control letter Breath, the control information include by the licensed band of PCell or by the special of the available unlicensed band offer relative to PCell With control resource set.CORESET may include one of above-mentioned DCI.When 130 determination of eNB will broadcast DCI, in 315, UE 105 can receive DCI by monitoring CORESET.
In 320, UE 105 determines that DCI is that DCI or carrier wave closing DCI is opened based on carrier wave.DCI is opened based on carrier wave Or carrier wave close DCI can be related to whether by receiver chain be placed in sleep or it is awake in.If DCI is opened or is carried based on carrier wave The DCI that wave is closed, then this method proceeds to 325, and wherein UE 105 determines whether DCI is that carrier wave closes DCI.If receiving load Wave closes DCI, then this method proceeds to 330, and wherein carrier wave is closed DCI and decode and determine and execute receiver and slept by UE 105 Dormancy scheme.UE 105 can determine receiver chain associated with represented unlicensed bandwidth and represented unlicensed bandwidth The not available corresponding duration.UE 105 can be used this information and these receiver chains be placed in sleep.If DCI is not Carrier wave closes DCI, then this method proceeds to 335, and wherein UE 105 determines whether DCI is that carrier wave opens DCI.If receiving load Wave opens DCI, then this method proceeds to 340, and wherein carrier wave is opened DCI decoding and determine and execute receiver and called out by UE 105 Awake scheme.UE 105 can determine receiver chain associated with represented unlicensed bandwidth, and not permitted using represented Can bandwidth the corresponding duration.Therefore, this information can be used to wake up these receiver chains in UE 105.
320 are back to, if DCI is not based on the DCI that carrier wave is opened or carrier wave is closed, this method proceeds to 345, Middle UE 105 determines whether DCI is related to channel selection/gravity treatment.If receiving channel reselection DCI, UE 105 is to channel reselection DCI is decoded and is proceeded to 350, wherein determining and executing channel reselection scheme.UE 105, which can be determined, is selected for LAA function New unlicensed bandwidth in energy is used to be passed to the receiver chain that DL is transmitted with this unlicensed bandwidth is tuned to.As described above, UE 105 can also exchange confirmation message with eNB 130 during channel reselection scheme.If DCI is not channel reselection DCI, This method proceeds to 355, wherein determining to receive carrier wave BWP DCI.In 360, UE 105 is decoded and is applied to carrier wave BWP DCI BWP mask defined in it is to adjust operation BWP.
Fig. 4 is shown according to various exemplary implementation schemes as described herein, passes through the radio control on user equipment To manage the first exemplary method 400 that main serving cell uses unlicensed bandwidth.Method 400 can be related to how eNB 130 gives birth to At channel off DCI and it is broadcasted the UE that eNB 130 is its PCell.Therefore, method will be described from the angle of eNB 130 400。
In 405, eNB 130 monitor unlicensed spectrum bandwidth in flow, with the unlicensed bandwidth of determination will when It is unavailable to the corresponding duration.As described above, eNB 130 may include flow monitoring component (for example, being incorporated in, module Change and combines, attachment etc.), or flow monitoring information can be received from individual components.Flow monitoring information can identify in use or It is expected that using the unlicensed bandwidth of known duration.Therefore, in 410, when unlicensed bandwidth is unavailable, eNB 130 can Determine time slot or subframe.The combinable parameter associated with LBT process of eNB 130.Therefore, in 415, eNB 130 combines this A little features are to refine not available unlicensed bandwidth and its corresponding duration.In 420,130 broadcast carrier of eNB is closed DCI.Can by the bandwidth of licensed spectrum or another can be used unlicensed bandwidth broadcast carrier wave to close DCI.
Fig. 5 is shown according to various exemplary implementation schemes as described herein, passes through the radio control on user equipment To manage the second exemplary method 500 that main serving cell uses unlicensed bandwidth.Method 500 can be related to how eNB 130 gives birth to DCI is opened at channel and is broadcasted the UE that eNB 130 is its PCell.Therefore, method will be described from the angle of eNB 130 500。
In 505, eNB 130 determines that any other UE is (for example, eNB 130 is its PCell in UE 105 or system 100 UE) the buffer area DL in whether have data.There are when data in the buffer area DL, in 510, eNB 130 determines constraint number According to UE whether have LAA ability.If UE does not have LAA ability, eNB 130 proceeds to 515, wherein using in licensed spectrum One or more bandwidth scheduling transmission.
If UE has LAA ability, eNB 130 proceeds to 520, wherein executing LBT mechanism.As described above, LBT mechanism may It is related to sensing radio environment before initiating the transmission, may thereby determine that can execute data exchange not in LAA function Permit bandwidth.Therefore, eNB 130 can be used LBT mechanism with the unlicensed bandwidth of determination when in use or overload.If Unlicensed bandwidth is unavailable, then this method proceeds to 530, and wherein eNB 130 determines whether DL transmission is continued using permit bandwidth. If it is desired that then this method is back to 520 with unlicensed spectrum.However, if DL transmission can only be executed using permit bandwidth, This method proceeds to 515, and wherein eNB 130 is transmitted using licensed spectrum scheduling DL.
525 are back to, if unlicensed bandwidth is available, this method proceeds to 535, and wherein the determination of eNB 130 is next Available chance opens DCI (its define to be used unlicensed bandwidth can be used) with broadcast carrier.As described above, carrier wave is opened DCI can also include the duration (if known to the information) that use unlicensed bandwidth.In 540, eNB 130, which is generated, to be carried Wave opens DCI and transmits it to UE 105.In 545, meanwhile, eNB 130 can also transmit or broadcast stick signal, to protect Stay the bandwidth in unlicensed spectrum to be used in LAA function, to transmit the DL data in the buffer area DL to UE 105.
Fig. 6 is shown according to various exemplary implementation schemes as described herein, and it is small that main service is managed by channel control The exemplary method 600 that area uses unlicensed bandwidth.Method 600 can be related to how eNB 130 generates channel reselection DCI or carrier wave BWP DCI is simultaneously broadcasted to the UE that eNB 130 is its PCell.Therefore, method 600 will be described from the angle of eNB 130.
In 605, eNB 130 monitors the load state at service channel.The load of service channel can be related to other loads How resource uses the service channel currently selected for the LAA function of UE 105.As set forth above, it is possible to omit from service LAA The load of cell is to provide fair comparison, because this load is not included in adjacent channel load measure.In 610, eNB 130 determine that this can hold in the rest part of method 600 in order to increase the available channel capacity of LAA and the factor to be considered It is continuous.For example, these factors may include load state, DFS or TPC requirement, transmission PSD, the available bandwidth of unlicensed spectrum etc..
In 615, eNB 130 determines whether service channel has acceptable load.If unlicensed channel will also wrap It includes for the acceptable load of extra load associated with UE 105, eNB 130 continues to use the unlicensed band of this selection It is wide.However, this method proceeds to 620 if the load of unlicensed channel is more than predetermined threshold value.In 620, eNB 130 monitor the load state at one or more adjacent channels.In 625, eNB 130 determines whether one of adjacent channel has More low load condition can be used the channel and replace service channel.This method 600 may include stagnant ring operation to avoid table tennis shape Condition, so that service channel load state at least predetermined amount poorer than adjacent channel load state.
If it find that adjacent channel has more low load condition (for example, making service channel difference at least predetermined Amount), this method proceeds to 630.In 630, eNB 130 determines the identity of the unlicensed channel.In 635, eNB 130 can be with It generates and broadcasts the channel reselection DCI including this unlicensed channel identity.In 640, determine whether UE 105 is received To channel reselection DCI.If do not received, this method is back to 640, and wherein eNB 130 continues broadcast channel gravity treatment DCI.Such as Fruit eNB 130 has received ACK from UE 105, and eNB 130 will know that UE 105 is ready for the unlicensed band using gravity treatment Width, therefore in 645, eNB 130 starts LBT mechanism in this unlicensed bandwidth and carries out data by this unlicensed bandwidth Exchange.
Be back to 625, if service channel there is unacceptable load and determine no adjacent channel can be received into Row gravity treatment, this method proceed to 650.In 650, eNB 130 determines the matter of the subchannel of the monitored channel of unlicensed spectrum Amount.For example, whether excessively whether the quality can be related to subchannel congestion or has excessive conflict.In 655, eNB 130 is determined Whether subchannel has acceptable quality (for example, low congestion/conflict).If it is determined that subchannel has acceptable quality (and false If these subchannels have been previously identified as work BWP), eNB 130 can continue to use these subchannels.However, if it is determined that Subchannel has unacceptable quality, and this method proceeds to 660, and wherein these sub-channel identifications are disabled by eNB 130, And in 665, eNB 130 is generated and broadcast carrier BWP DCI, provides and mask is for disabling represented BWP.
Fig. 4-Fig. 6 is described associated with the eNB 130 as PCell and is provided the method for control information to UE 105, According to exemplary implementation scheme, which includes DCI.Although describing the method for Fig. 4-Fig. 6 by individual mode, ENB 130 may include a kind of overall method to select the one or more DCI that generate and broadcast to UE 105.For example, ENB 130 can be determined whether the combination of DCI to be used.In another embodiment, eNB 130 can determine that carrier wave closes current shape State (wake-up) and carrier wave open the priority between current state (sleep).Therefore, preferential if waking up current state, it can be with DCI is closed using carrier wave, vice versa.ENB 130 can be configured to determine one to be used or more using any standard A DCI.
Exemplary implementation scheme provides the active mode of the PCell execution by LAA function, manages in LAA function The equipment, system and method that unlicensed spectrum uses.If LAA function and the LTE standard of the appropriate channel of selection/reselection be not fixed The mechanism of justice is available, and exemplary implementation scheme provides multiple dedicated CORESET block of informations, they are broadcast to UE, with definition How unlicensed spectrum is managed.In particular, exemplary implementation scheme includes: that carrier wave closes DCI, which defines not available Unlicensed bandwidth, so as to which the correspondence receiver chain of UE to be placed in sleep；Carrier wave opens DCI, which defines to be used Unlicensed bandwidth, to corresponding receiver chain is placed in awake；Channel reselection DCI, the DCI synchronizing channel hop scheme scheme, thus For unlicensed bandwidth represented by LAA function gravity treatment；And carrier wave BWP DCI, which defines will be from the consideration in LAA function The subchannel or BWP omitted in item.
It will be apparent to one skilled in the art that can be come with any suitable software configuration or hardware configuration or their combination Realize exemplary implementation scheme described above.Exemplary hardware platform for realizing exemplary implementation scheme may include for example The platform based on Intel x86, Mac platform and MAC OS with compatible operating system, have operating system such as iOS, The mobile device of Android etc..In other embodiments, the exemplary implementation scheme of the above method can be embodied as including storage The program of code line in non-transient computer readable storage medium, when being compiled, which can be in processor or micro- It is executed on processor.
It is well known that should be followed using personal recognizable information be known as meeting or more than maintenance privacy of user industry or The privacy policy and way of administration request.In particular, personal recognizable information data should be managed and be handled, so that unintentionally or not Authorized access or the risk minimization used, and the property licensed should be clearly stated to user.
To those skilled in the art it is evident that, can be before not departing from spirit or scope of the invention It puts and the present invention is carry out various modifications.Therefore, the present invention is directed to cover modification and variations of the invention, but premise It is these modifications and variations in the range of appended claims and its equivalent form.

Claims (20)

1. a kind of method, comprising:
At the evolution node B (eNB) as main serving cell (PCell), the main serving cell is in carrier wave polymerization (CA) side Principal component carrier wave (PCC) is provided in case in licensed spectrum to user equipment (UE), wherein providing auxiliary point in unlicensed spectrum Loading gage wave (SCC):
Monitor the parameter of the bandwidth in the unlicensed spectrum；
When at least one of the parameter indicates the change in availability of the selected bandwidth in the bandwidth, generates and define institute State the control instructions device of the change in availability of bandwidth；And
The control instructions device is broadcasted to the UE,
Wherein the control instructions device influences the modification in the transceiver of the UE associated with the bandwidth.
2. according to the method described in claim 1, wherein the control instructions device is include down link control information DCI special With a part of control resource set.
3. according to the method described in claim 2, wherein the DCI is to define the when not available carrier wave of the bandwidth to close DCI, wherein at least one described parameter includes the holding time of the bandwidth.
4. according to the method described in claim 3, wherein the carrier wave closes DCI the holding time is defined as the bandwidth The quantity of one in not available time slot or subframe.
5. according to the method described in claim 3, wherein the modification includes the reception for the transceiver of the bandwidth Device chain is placed in low-power mode.
6. according to the method described in claim 2, wherein the DCI is to define the when available carrier wave of the bandwidth to open DCI, Wherein at least one described parameter include indicate the bandwidth or the bandwidth part when Kong Xian listem-before-talk (LBT) machine A part of system.
7. according to the method described in claim 6, wherein the carrier wave open DCI define to use the bandwidth it is lasting when Between.
8. according to the method described in claim 6, wherein the modification includes the reception for the transceiver of the bandwidth Device chain is placed in awake mode.
9. according to the method described in claim 6, further include:
Broadcast the stick signal of the bandwidth.
10. according to the method described in claim 2, wherein the DCI is the variation defined from the bandwidth to other bandwidth Channel reselection DCI, wherein at least one described parameter include the bandwidth load state and the other bandwidth it is negative Load situation.
11. according to the method described in claim 10, wherein the modification includes from the transmitting-receiving associated with the bandwidth First receiver chain of device changes into the second receiver chain of the transceiver associated with the other bandwidth.
12. according to the method described in claim 10, further include:
The confirmation that instruction receives the channel reselection DCI is received from the UE；
LBT mechanism is activated at the other bandwidth.
13. according to the method described in claim 2, wherein the DCI is the load defined from the subchannel for considering to omit in use Wavestrip wide portion (BWP) DCI, wherein at least one described parameter includes the quality level of the subchannel, the quality level It is associated with one of congestion level, Conflict Level or their combination.
14. according to the method for claim 13, wherein the carrier wave BWP DCI include for the subchannel with cover Code, to adjust one group of operation BWP of previous definition.
15. a kind of network components, comprising:
Transceiver, the transceiver are configured to connect to user equipment (UE), and the transceiver is configured with carrier wave polymerization (CA) Function and be used as to the UE provide principal component carrier wave (PCC) main serving cell (PCell), wherein being mentioned in unlicensed spectrum For auxiliary component carrier (SCC)；With
Processor, the processor monitor the parameter of the bandwidth in the unlicensed spectrum, when at least one of the parameter refers to When showing selected one change in availability in the bandwidth, the processor generates definition the described of bandwidth and uses Property variation control instructions device,
Wherein the processor indicates that the transceiver broadcasts the control instructions device to the UE,
Wherein the control instructions device influences the modification of the transceiver of the UE associated with the bandwidth.
16. network components according to claim 15, wherein it includes down link control information that the control instructions device, which is, A part of the dedicated control resource set of DCI.
17. network components according to claim 16, wherein the DCI includes defining the when not available load of bandwidth Wave closes DCI, defines the when available carrier wave opening DCI of the bandwidth, definition from the bandwidth to the variation of other bandwidth Channel reselection DCI or definition from one in carrier bandwidths part (BWP) DCI of subchannel for considering to omit in use.
18. network components according to claim 17, wherein
When the DCI includes that the carrier wave closes DCI, the modification includes the reception for the transceiver of the bandwidth Device chain is placed in low-power mode,
When the DCI includes that the carrier wave opens DCI, the modification includes the reception for the transceiver of the bandwidth Device chain is placed in awake mode, and
When the DCI includes the channel reselection DCI, the modification includes from the transceiver associated with the bandwidth The first receiver chain change into the second receiver chain of the transceiver associated with the other bandwidth.
19. network components according to claim 17, wherein the carrier wave BWP DCI include for the subchannel with Mask, to adjust one group of operation BWP of previous definition.
20. a kind of method, comprising:
At the user equipment (UE) configured with carrier wave polymerization (CA) function and license auxiliary access (LAA) function, wherein being permitted It can service, and be serviced in unlicensed spectrum for auxiliary component carrier (SCC), the UE quilt for principal component carrier wave PCC in frequency spectrum Control information is provided and uses the LAA function to provide the PCC by main serving cell (PCell):
The control instructions device broadcasted from the PCell is received, the control instructions device defines the bandwidth in the unlicensed spectrum Change in availability；
Determine the modification of the transceiver of the UE associated with the bandwidth；And
Implement the modification.
CN201811521595.XA 2017-12-13 2018-12-13 Unlicensed band management control indicator Active CN109922526B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762598221P 2017-12-13 2017-12-13
US62/598,221 2017-12-13
US16/214,472 2018-12-10
US16/214,472 US10993117B2 (en) 2017-12-13 2018-12-10 Unlicensed band management control indicators

Publications (2)

Publication Number Publication Date
CN109922526A true CN109922526A (en) 2019-06-21
CN109922526B CN109922526B (en) 2023-07-25

Family

ID=66697558

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811521595.XA Active CN109922526B (en) 2017-12-13 2018-12-13 Unlicensed band management control indicator

Country Status (2)

Country Link
US (2) US10993117B2 (en)
CN (1) CN109922526B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021035544A1 (en) * 2019-08-27 2021-03-04 Qualcomm Incorporated Channel state information processing criteria
CN113349796A (en) * 2021-06-16 2021-09-07 珠海中科先进技术研究院有限公司 Sleep monitoring method and device based on multi-source signals and storage medium

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3709698B1 (en) * 2017-12-28 2022-10-26 Huawei Technologies Co., Ltd. Method, user equipment, and system for using wireless access technologies
CN109451864B (en) * 2018-02-13 2023-11-24 北京小米移动软件有限公司 Method and device for transmitting information, base station and user equipment
EP3753337A1 (en) * 2018-02-14 2020-12-23 Lenovo (Singapore) Pte. Ltd. Activating a bandwidth part
US11323989B2 (en) * 2018-02-26 2022-05-03 Huawei Technologies Co., Ltd. Method and apparatus for bandwidth indication in unlicensed spectrum
US11743764B2 (en) * 2018-06-20 2023-08-29 Lg Electronics Inc. Method for selecting BWP and device supporting the same
US11388669B2 (en) * 2019-01-29 2022-07-12 Mediatek Singapore Pte. Ltd. Method and apparatus for power consumption reduction with multi-link operation in mobile communications
EP4047998A4 (en) * 2020-05-14 2023-05-24 Honor Device Co., Ltd. Secondary cell adding method, terminal and chip
US11265751B1 (en) * 2020-05-19 2022-03-01 Sprint Spectrum L.P. Dynamic air-interface reconfiguration based on inter-access-node data flow for dual-connectivity service
US11265135B2 (en) * 2020-06-03 2022-03-01 Dish Wireless Llc Method and system for slicing assigning for load shedding to minimize power consumption where gNB is controlled for slice assignments for enterprise users

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103370896A (en) * 2010-12-06 2013-10-23 交互数字专利控股公司 Method to enable wireless operation in license exempt spectrum
CN104768160A (en) * 2014-01-03 2015-07-08 上海朗帛通信技术有限公司 Scheduling method and scheduling device for unlicensed spectrum
WO2016072468A1 (en) * 2014-11-07 2016-05-12 京セラ株式会社 Wireless base station and user terminal
CN105659659A (en) * 2013-11-27 2016-06-08 英特尔公司 Mechanisms for co-existence of lte-u network with itself and with other technologies
US20160183220A1 (en) * 2014-12-18 2016-06-23 Intel Corporation Evolved node-b, user equipment and methods for transition between unlicensed and licensed frequency bands
US20160242186A1 (en) * 2015-02-12 2016-08-18 Nokia Technologies Oy Dynamic Carrier Selection Via Auxiliary Carriers In Unlicensed Band
WO2016137821A1 (en) * 2015-02-27 2016-09-01 Qualcomm Incorporated Fast enhanced component carrier activation
WO2017080516A1 (en) * 2015-11-13 2017-05-18 Huawei Technologies Co., Ltd. Device, network, and method for communications with opportunistic transmission and reception
CN107079447A (en) * 2014-09-27 2017-08-18 Lg电子株式会社 Use the communication means and its equipment of carrier aggregation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8767580B2 (en) * 2011-03-08 2014-07-01 Nec Laboratories America, Inc. Femtocell resource management for interference mitigation
EP2503835A1 (en) * 2011-03-23 2012-09-26 Panasonic Corporation Resouce assignment for single and multiple cluster transmission
WO2013067675A1 (en) * 2011-11-07 2013-05-16 Renesas Mobile Corporation Uplink transmissions and grants in extension carrier
US20130114571A1 (en) * 2011-11-07 2013-05-09 Qualcomm Incorporated Coordinated forward link blanking and power boosting for flexible bandwidth systems
US9713083B2 (en) * 2013-08-28 2017-07-18 Noki Technologies Oy LTE advanced service indicator
US9729175B2 (en) * 2014-05-08 2017-08-08 Intel IP Corporation Techniques to manage radio frequency chains
US10582419B2 (en) * 2014-07-22 2020-03-03 Time Warner Cable Enterprises Llc Wireless spectrum usage and load-balancing
US10849125B2 (en) * 2015-01-30 2020-11-24 Qualcomm Incorporated Joint control for enhanced carrier aggregation
US10462739B2 (en) * 2016-06-21 2019-10-29 Samsung Electronics Co., Ltd. Transmissions of physical downlink control channels in a communication system
US10405332B2 (en) * 2016-09-06 2019-09-03 Samsung Electronics Co., Ltd. Coexistence of different radio access technologies or services on a same carrier
KR102076821B1 (en) * 2017-09-11 2020-05-18 엘지전자 주식회사 Method and apparatus for transmitting downlink control information in wireless communication system
US10594468B2 (en) * 2017-09-29 2020-03-17 Mediatek Inc. Efficient bandwidth adaptation for a wideband carrier
EP3787189A1 (en) * 2017-11-09 2021-03-03 Comcast Cable Communications LLC Csi transmission with multiple bandwidth parts
CA3024549A1 (en) * 2017-11-16 2019-05-16 Comcast Cable Communications, Llc Power control for bandwidth part switching

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103370896A (en) * 2010-12-06 2013-10-23 交互数字专利控股公司 Method to enable wireless operation in license exempt spectrum
CN105659659A (en) * 2013-11-27 2016-06-08 英特尔公司 Mechanisms for co-existence of lte-u network with itself and with other technologies
CN104768160A (en) * 2014-01-03 2015-07-08 上海朗帛通信技术有限公司 Scheduling method and scheduling device for unlicensed spectrum
CN107079447A (en) * 2014-09-27 2017-08-18 Lg电子株式会社 Use the communication means and its equipment of carrier aggregation
WO2016072468A1 (en) * 2014-11-07 2016-05-12 京セラ株式会社 Wireless base station and user terminal
US20160183220A1 (en) * 2014-12-18 2016-06-23 Intel Corporation Evolved node-b, user equipment and methods for transition between unlicensed and licensed frequency bands
US20160242186A1 (en) * 2015-02-12 2016-08-18 Nokia Technologies Oy Dynamic Carrier Selection Via Auxiliary Carriers In Unlicensed Band
WO2016137821A1 (en) * 2015-02-27 2016-09-01 Qualcomm Incorporated Fast enhanced component carrier activation
CN107409029A (en) * 2015-02-27 2017-11-28 高通股份有限公司 Quick enhanced component carrier activation
WO2017080516A1 (en) * 2015-11-13 2017-05-18 Huawei Technologies Co., Ltd. Device, network, and method for communications with opportunistic transmission and reception

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Discussion on carrier aggregation and bandwidth parts", 《3GPP TSG RAN WG1 MEETING NR#3 R1-1715892》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021035544A1 (en) * 2019-08-27 2021-03-04 Qualcomm Incorporated Channel state information processing criteria
WO2021037137A1 (en) * 2019-08-27 2021-03-04 Qualcomm Incorporated Channel state information processing criteria
CN113349796A (en) * 2021-06-16 2021-09-07 珠海中科先进技术研究院有限公司 Sleep monitoring method and device based on multi-source signals and storage medium

Also Published As

Publication number Publication date
US20190182675A1 (en) 2019-06-13
US10993117B2 (en) 2021-04-27
US20210321265A1 (en) 2021-10-14
CN109922526B (en) 2023-07-25

Similar Documents

Publication Publication Date Title
CN109922526A (en) Unlicensed band manages control instructions device
US10917918B2 (en) EMTC-U-UCI reporting procedures and enhancements
JP6932806B2 (en) DC subcarrier processing in narrowband devices
CN106465138B (en) Method and apparatus for transmitting LTE waveforms in shared spectrum by carrier sensing
US8837422B2 (en) Low-cost LTE system with distributed carrier aggregation on the unlicensed band
CN103621130B (en) For promoting method and apparatus of the telecommunication system using unauthorized to the frequency band of the telecommunication system
JP7326587B2 (en) Channel state information reporting method and apparatus in wireless communication system
CN111295912B (en) Power control in a directional beam environment
CN112189353A (en) Wideband PDCCH for unlicensed frequency bands available to new radios
JP2020532191A (en) Beam management for discontinuous reception with advanced permission indicator
CN109891976A (en) The transmission of intertexture uplink coexists with what continuous uplink transmitted
CN109923933A (en) For selectively adjusting the technology of wireless communication parameters based on the polymerization interference from listem-before-talk wireless device
BR112020002469A2 (en) generation of channel status information report for short transmission time intervals
CN109964504A (en) User terminal and wireless communications method
JP2021507624A (en) Resource allocation in NR-SS
CN110463324A (en) For the cross-carrier scheduling of wireless device
JP2017536015A (en) Techniques for transmitting a sounding reference signal or scheduling request over an unlicensed radio frequency spectrum band
CN103444223A (en) Limiting interference in a heterogeneous wireless communication system
CN111886827B (en) Search space oversubscription and pruning
CN107079302A (en) Concealed nodes detection in LTE license auxiliary accesses
TW202046812A (en) Power management for a user equipment in a multi-radio connectivity mode or carrier aggregation mode
JP2021512548A (en) Modulation table determination and channel quality indicator reporting for short transmission time intervals
US11324066B2 (en) Dynamic downlink monitoring techniques for communication systems
CN107210880A (en) Second-level dispatching is asked
TW202106085A (en) High efficiency transmission mode support

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant